<!DOCTYPE html>
<html lang="en">
  <head>
    <title>HTML5 Bootcamp - Hello World</title>
  </head>
  <body>
  		<p id="simpleParagraph">Hello World with HTML5</p>
		<script>
				function alterText(){
						 var p=document.getElementById("simpleParagraph");
                		 p.innerHTML="Hello World with JavaScript!";
				}
		</script>
		
		<button type="button" onclick="alterText()">Greeatings button</button>
  </body>
</html>